Following up on Star Trek Memories, William Shatner covers approximately 1968 to 1994, explaining his role in "Star Trek" in that time. Starting with the final season of the original "Trek," through his somewhat lean in-between years, he then goes into rather extensive detail into the development and production of the first seven feature films.

On top of Shatner's tale, written by himself and Chris Kreski, are narratives written or spoken by dozens of actors, writers, producers, and directors who worked on "Star Trek," resulting in a much more well-rounded piece.

Of particular interest are his descriptions of early plots to the films, particularly his lengthy summary of his original plan for Star Trek V: The Final Frontier before it got bogged down in a terrible chain of events, and the many early stories pitched for what would be come Star Trek: The Motion Picture.

The tone in this book differed considerably from its predecessor, Star Trek Memories, in which Shatner dealt with his experiences on Star Trek: The Original Series. While Shatner had in that book included a large amount of third person behind-the-scenes information from a wide variety of former production staffers, most of whom he had not personally worked with at the time, making it a "making-of" reference book as well, this was less evident in this book – though there were some featured in the book such as David Gautreaux and Harold Livingston in regard to Star Trek: The Motion Picture, and its immediate predecessor Star Trek: Phase II, the former of which Shatner had few dealings with. What "making-of" information is contained, is mostly limited to those that Shatner was personally involved with, such as his dealings with his fellow co-stars (excepting James Doohan), writers and directors, most notably on the movie he himself directed, Star Trek V: The Final Frontier. Yet, when featured, Shatner still let them speak in their own words, having conducted interviews with them, just as for his previous book. As a consequence, the book is mostly written as a first person account and is as such a true autobiography. Shatner himself has given the reason for this, "My recollections of the movies and the shenanigans that went on in making them are far fresher than those of Star Trek the series, which constituted the first book." (1995, p. vii), indicating that the more third-person approach he took for Star Trek Memories had been somewhat of a stopgap solution to beef out the work.

Despite the above-mentioned reservations, Shatner's movie memoirs did nevertheless became a major reference source on at least one occasion for others, specifically for Kim Masters' 2000 biography on Michael Eisner, The Keys to the Kingdom.